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DOI

  • Т.И. Виноградова
  • Михаил Сергеевич Сердобинцев
  • Евгения Георгиевна Коржикова-Влах
  • Виктор Александрович Коржиков-Влах
  • Александр Сергеевич Кафтырев
  • Наталья Михайловна Блюм
  • Наталья Юрьевна Семёнова
  • Диляра Салиевна Эсмедляева
  • Марина Евгеньевна Дьякова
  • Юлия Александровна Нащекина
  • Марине Зауриевна Догонадзе
  • Наталья Вячеславовна Заболотных
  • Пётр Каземирович Яблонский

Tuberculosis remains one of the major health problems worldwide. Besides the lungs, tuberculosis affects other organs, including bones and joints. In the case of bone tuberculosis, current treatment protocols include necrectomy in combination with conventional anti-tuberculosis therapy, followed by reconstruction of the resulting bone defects. In this study, we compared autografting and implantation with a biodegradable composite scaffold for bone-defect regeneration in a tuberculosis rabbit model. Porous three-dimensional composite materials were prepared by 3D printing and consisted of poly(ε-caprolactone) filled with nanocrystalline cellulose modified with poly(glutamic acid). In addition, rabbit mesenchymal stem cells were adhered to the surface of the composite scaffolds. The developed tuberculosis model was verified by immunological subcutaneous test, real-time polymerase chain reaction, biochemical markers and histomorphological study. Infected animals were randomly divided into three groups, representing the infection control and two experimental groups subjected to necrectomy, anti-tuberculosis treatment, and plastic surgery using autografts or 3D-composite scaffolds. The lifetime observation of the experimental animals and analysis of various biochemical markers at different time periods allowed the comparison of the state of the animals between the groups. Micro-computed tomography and histomorphological analysis enabled the evaluation of osteogenesis, inflammation and cellular changes between the groups, respectively.

Original languageEnglish
Article number2229
Number of pages28
JournalBiomedicines
Volume11
Issue number8
DOIs
StatePublished - 8 Aug 2023

    Research areas

  • biocomposite scaffolds, biomaterials, bone regeneration, bone tuberculosis

    Scopus subject areas

  • Transplantation
  • Infectious Diseases
  • Biomaterials

ID: 107715446